package demo02;

public class Keyboard implements USB{

    @Override
    public void Open() {
        System.out.println("键盘启动");
    }
    public void Play() {
        System.out.println("疯狂摔打键盘");
    }
    @Override
    public void Close() {
        System.out.println("键盘关闭");
    }
}
